Discussions By Condition: I cannot get a diagnosis.

itchy skin spreading...incredibly distressed

About a week ago i noticed a few bumps around my wrist they were not itchy then. nor were they red. They then spread from my wrist to my elbow became red and ferociously itchy. Then they begain appearing on my other arm in the same fashion. Now i have tons on my arms they are tiny bumps nothing like the images i see when i searched rashes. Then i had probably four or five just above my knees and maybe two behind my knees nothing on my lower leg though. I now have them across my chest and up my neck sparingly, nothing in comparison to my arms its awful looking and cortisone does little to no good.. im worried for several reasons i cant find anything similar, (oh and a few across my lower abdomen and lower back) the cortisone does nothing and my arms look horrifying, even though there not large there is just a mass of them from the wrist up please please please if you have had or seen anything similar let me know..